Improvement in oil-ejectors



UNITE STATES PATENT OFFICE.`

GEORGE E. MILLS, OF NEW YORK, N. Y.

IMPROVEMENT |`N olL-EJacToRs. y

Specification forming part of Letters Patent No. 47,4214, dated April 25,1865.

Z' 0 all whom zit may con/cern:

Be it known that I, GEORGE E. MILLS, of the city, county, and State of New York, have invented `certain new and useful Improvements in Air-Injectors for Oil-Wells and for 3 is the air-injector with the bottom joint unsorewed or detached. Fig. 4 is an end View of the corrugated discharge-pipe and perforated point. Fig. 5 shows an end View of a corrugated injector apparatus and air-tube. Fig. 6 shows an end view of a plain injector apparatus.

My invention consists in attaching a perforated cone-pointed base to a light corrugated metal tube for discharging oil from wells by an air-injector apparatus, which is constructed and inserted into the discharge-pipe, to be operated in the manner as hereinafter described.` To enable others skilled in the art to make and use my air-injector apparatus, I will describe it more fully, referring to the drawings, and to the letters of reference marked thereon. For the purpose of obtaining a iiow of oil in the most economical manner from wells, I use avery light corrugated metal tube, A, which has as much stiffness and strength as three times its weight when made plain, and to insure its central position in the bottom of the shaft of the well I attach a cone-pointed bulb, B, the diameter of which is larger than the corrugated discharge-pipe A, the upper pogtion having a series of holes, a a a a, to admit the oil into the discharge pipe or tube A, after other extraneous substances have been cut oft` from the oil-veins by seed-bags. Thewell being thus properly tubed, I then insert my improved air-injector C, `which consists of short pieces of very thin plain or corrugated tubes c c. The lower or bottom piece, c', is closed at the bottom, so as to be pointed or cone-shaped,

and will find its center and supportin the bulb B, the base of the discharge-pipe A. The tubes c c have bars d @which hold the airpipe E centrally in them. The air-pipes E E are tted with screws f and sockets, so that any number of joints that may be required may be screwed and coupled together to bring the cup end eto the desired height in the discharge-pipe A, where the injected air comes in contact ,with the oil or fluid to act most efficiently on" it, and force `it up, so that it will flow out of the discharge-pipe In many wells oil may be ob ained by my improved apparatus, as above described, for

less than one-third of the usual outlay attendant on pumping, a-nd the wear of the machinery for injecting airinto oil-wells, when properly tubed, bears no comparison with the pumping process.

I do not claim steam or compressed air to be used in oil-wells; but

' What I do claim as new, and desire to secure by Letters Patent, is-

l. The use of corrugated metal for tubing oil-wells, the same being supported on a perforated bulb and cone-pointed base, substantially as herein described.

2. The tubes c cfput together in sections and secured by screws in sockets on the airl pipe E, so that the point where the air comes in contact with the iiuid may be adjusted in height, as and tor the purposes set forth.

GEORGE E. MILLS.

Witnesses:

N. WILLIAM BUsrEED, WILLIAM W. FRENCH. 

